To address queries and complaints from subscribers promptly, telecom firm Tata Docomo today launched an online customer care service for its pre-paid and post-paid mobile users.

The service -- Live Chat -- will allow customers to get answers or inputs on any query or complaint instantly through chat, the GSM arm of Tata Teleservices said in a statement.

The service will take care of all post-paid and prepaid queries, requests and complaints through the Live Chat option, it added.

Furthermore, in bid to receive constant feedback from customers on the quality of this service, Tata Docomo will provide various feedback options for customers to provide their inputs.

Tata Docomo marketing head Gurinder Singh Sandhu said, "Live Chat is a natural extension of our attempt to leverage our presence and experience in the digital space. This takes forward our strategy of differentiating through constant thought-leadership and innovation in products, services and experiences.